
Recipe Highlights
Dashi is the soup inventory on the coronary heart of Japanese cooking, and it’s what provides Japanese dishes their distinctive depth of taste. I normally attain for my selfmade Kombu Dashi (昆布だし) when making soups, simmered dishes, and sizzling pots.
Once I’m meal prepping, I’ll begin a batch of cold-brew kombu dashi the night time earlier than. On busy weeknights, a fast stovetop simmer makes dashi prepared in minutes.
Right here’s why I hold coming again to this recipe:
- The best dashi to make from scratch, with simply two components
- Naturally vegan—no animal merchandise
- Make it two methods: a hands-off chilly brew technique or a fast stovetop simmer
To be taught extra about Japanese soup shares, learn my in-depth information: What’s Dashi and The best way to Make It. In search of different plant-based dashi recipes? Strive my Vegan Dashi and Shiitake Dashi recipes subsequent.

What’s Kombu Dashi?
Kombu dashi (昆布だし) is a transparent Japanese soup inventory made by steeping kombu (dried kelp) in water.
This dashi is of course vegan because it depends fully on dried kelp. Kombu is wealthy in glutamic acid, the amino acid behind umami, which provides the broth its deep, savory taste.
Different widespread Japanese soup shares embody Katsuo Dashi and Awase Dashi, a mixture of each kombu and katsuobushi (dried bonito flakes).
Elements for Kombu Dashi
Discover the printable recipe with measurements under.
The best way to Make Kombu Dashi
- Prep the kombu. Wipe the kombu with a tightly wrung-out damp fabric, leaving any white powder intact. Minimize slits within the kombu to assist launch extra taste.
- Technique one: Chilly-brew Kombu Dashi (Mizudashi). Add the kombu and water to a big jar or pitcher. Steep coated at room temperature for two to three hours in summer time, 4 to five hours in winter, or in a single day within the fridge. Take away the kombu earlier than utilizing.
- Technique two: Stovetop Kombu Dashi (Nidashi). Add the kombu and water to a pot and steep for no less than half-hour. Warmth over medium-low, skimming any scum with a fine-mesh skimmer, till barely simmering, about 10 minutes. Take away the kombu simply earlier than it simmers and switch off the warmth.
- Use or retailer. Use the dashi straight away, or refrigerate it in an hermetic container for later.





Variations
Listed below are a couple of simple methods to make this recipe your personal.
- Add dried mushrooms. Add a couple of dried shiitake mushrooms to the bottle or pot for a fuller, earthier taste. Referred to as Vegan Dashi or shojin dashi, this inventory is a staple of shojin ryori, the standard vegetarian delicacies of Japanese Buddhist temples.

- Stronger inventory. Double the quantity of kombu for noodle soups and sizzling pots, the place a extra distinguished dashi taste is required.
- Experiment with kombu. Totally different sorts of kombu convey delicate variations in taste and aroma to the broth. Use my kombu information to study every kind and discover your favourite.
The best way to Use Kombu Dashi
As soon as your inventory is prepared, strive these recipes:
- Vegan Miso Soup – A easy miso soup with silken tofu and wakame seaweed, prepared in 20 minutes.
- Kenchinjiru – A warming vegetable soup with loads of greens and tofu, rooted in Zen Buddhist temple delicacies.
- Yaki Onigiri Chazuke – A crunchy grilled rice ball in a comforting kombu dashi broth.
- Dashimaki Tamago – A silky, savory rolled omelette made with kombu dashi whisked into overwhelmed eggs.


Storage and Reheating Suggestions
To retailer: Switch the cooled dashi to an hermetic container or bottle. Refrigerate for as much as 4 to five days, or freeze for as much as 2 weeks. Use it sooner for one of the best taste.
To reheat: Heat gently in a saucepan over medium-low warmth till simply steaming. Keep away from boiling, which dulls the flavour.
FAQ
Is kombu dashi the identical as dashi?
Kombu dashi is likely one of the Japanese soup shares. Made with solely kombu and water, kombu dashi is of course vegan and differs from Awase Dashi, the widespread Japanese dashi. Awase dashi combines kombu with dried bonito flakes (katsuobushi).
Why is my kombu dashi slimy and bitter?
When the kombu is heated previous a simmer or left in water too lengthy, it turns into bitter with a slimy texture. Pull the kombu out proper earlier than the water reaches a naked simmer on the range to maintain the broth clear and clear. When utilizing the cold-brew technique, take out the kombu after 2 to three hours in summer time, and 4 to five hours in winter.
What’s the distinction between kombu dashi and vegan dashi?
Kombu dashi makes use of solely kombu, for a lighter taste and clearer soup. Vegan dashi combines kombu with dried shiitake mushrooms for a deeper, earthier taste perfect for heartier soups and stews.
I’d love to listen to how yours turned out! 💛 Please go away a star score and remark under to share your expertise. Your suggestions not solely helps Simply One Cookbook but additionally helps different residence cooks uncover recipes they’ll belief.
Kombu Dashi Recipe (Vegan)
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Collect all of the components. Wipe 1 piece kombu (dried kelp) with a tightly wrung-out damp fabric, leaving any white powder intact. Minimize a couple of slits to assist launch extra taste. Nami’s Tip: The white powder is mannitol—the important thing supply of umami. Do not wipe it off. Kombu is pretty clear lately, so wiping might not be crucial.
Technique 1: Chilly Brew Kombu Dashi (Mizudashi)
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Put 4 cups water and the kombu in a big pitcher or jar. Cowl and steep at room temperature for 2–3 hours in summer time (4–5 hours in winter) or in a single day within the fridge. Take away the kombu earlier than utilizing.Nami’s Tip: Leaving the kombu in too lengthy makes the dashi slimy and bitter. Save the spent kombu and see under for tips on how to use it in different recipes.
Technique 2: Stovetop Kombu Dashi (Nidashi)
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Put 4 cups water and the kombu in a pot. Steep at room temperature for no less than half-hour earlier than heating.Warmth over medium-low and slowly convey it to a naked simmer, giving the kombu time to launch its full taste, about 10 minutes.
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In the meantime, skim off the scum and foam with a fine-mesh skimmer. Simply earlier than the dashi reaches a naked simmer, take away the kombu. Nami’s Tip: Leaving the kombu in too lengthy makes the dashi slimy and bitter. Save the spent kombu and see under for tips on how to use it in different recipes.
Serving: 1batch, Energy: 2kcal, Carbohydrates: 1g, Sodium: 39mg, Potassium: 32mg, Fiber: 1g, Sugar: 1g, Calcium: 138mg, Iron: 1mg
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Editor’s Word: This submit was initially printed on February 12, 2013, up to date with new pictures in April 2019, and republished with extra useful content material on June 3, 2026.

